Improvement in spinning-machines



P. W., T. H. E A. GREENWOOD.

I .SPINNING MACHINE.

PATENTED JUNE 21, 1864.

UNITED STATES PATENT OFFICE.

PETER W. GREENWOOD, THOMAS H. GEEEWOOD, AND ALFRED GREEN- WOOD, OF PHILADELPHIA, FENNsYLvANIA.

IMPROVEMENT IN SPINNING-MACHINES.

Specification. forming part of Letters Patent No. 13,I9S, dated June 21, 1864.

To all whom it may concern:

Be it known that we, PETER W. GREEN- WOOD, THOMAS H. GREENWOOD, and AL- FEED GREENWOOD, of Philadelphia, State of Pennsylvania, have invented a lnew Improvement in Spinning Machinery; and we hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings andthe letters of referencemarked thereon.

The nature of our invention consists in applyin g to the ordinary spinning machine, mule, or jenny an improvement whereby the slub or untwisted roving is rendered less liable to break during the spinning process and the spun yarn made of more even thickness.

To enable Others skilled in the art to make and use our invention, we will proceed to describe its construction and operation, referencebeinghad to the accompanyingdrawings.

Figure l is a plan. Fig. 2 is an elevation.

The Ordinary spinning machine, mule, or jenny is so well known to the trade that its operation need be only brieily described here.

The same letters lin each ligure refer to the same parts.

In Fig. 1, A represents the carriage, traveling backward and forward on the guides E E. It carries upon it a large number of spindles, one of which is represented at F.

D represents the slubbing after it comes from the carding-engine.

B B are two rollers, called deliveringrollers. They are driven in the saine direction by the belt M. A loose roller, G, rests on the rollers B B', and between C and the rollers B B the slubbing is drawn by means of gearing connected with the rollers B B, and thrown in and out of gear at proper intervals. rollers C and B B to the spindle F. These said rollers deliver a certain amount of slubbing and then cease to rotate, and hold the slubbing fast between them, the carriage A continuing at the same time to recede from the rollers, stretching the slubbin g and spinning it at the same time.

The above is a brief description of ordinary"` The slubbing D passes between the ing no twist in it, is liable to be stretched and broken, and at the point between the rollers the yarn becomes uneven.

The object of our invention is to prevent this by putting a twist in the slubbing immediately between the rollers B Bl and U pre- To accomplish this, we tix to the rollers a 1eversing apparatus, which is thrown in and out of gear by the action of tappet H, fixed tothe end of carriage A. This reversing apparatus we will now describe. It is composed of a sliding bar, G G, working in the guides I I l'. This bar is 4hinged at J, so that the part G can be raised and lowered. (See Fig. 2.) The bar G carries a rack, K, gearing into the pinion L, which said pinion drives the roller B, and also B', by means ofthe belt M.

- To the under side of the bar G is an arm, N N, projecting, and there is a similar one, P I?, on the bar G. These arms have ahinge in the middle, by which they can be raised to the position shown by the red lines at O, Fig. 2; but they can gono farther back than the position shown atN and I. To the arml I? is xed a hook, R, by which the movable piece P can be held up permanently in position, and at the option ofthe spinner. The spring S assists in keeping the bar G in its position. (Shown in Fig. 2. -To the under side ofthe bar G is a-lso fixed the inclined plane T, bearing on the frame U. The tappetH can be raised or lowered on the carriage A by means of the screw and nut W.

The Operation of our improvement is as follows The rollers B Bl having delivered a certain amount of slubbing by the ordinary machinery attached to them, (about forty inches is a common amount to deliver,) and the carriage A having reced ed to the position shown in Fig. 2, the tappet H now strikes against the arm N and carries it along with it, drawing the rack K into gear with pinion L, and thereby giving to the rollers B B a reverse motion, retaking or drawing in between them and roller U a small amount-say, a fewinches-of that part of the slubbing between the rollers and spindle F, which has received a' small twist in it. As the carriage A carries with itv the bar G' G the inclined plane T, sliding on the frame U, elevates the bar G and arm N, releasing it from the tappet H, so that the carriage A may viously to the stretching strain comin g upon it.

X and redelivering the portion of slubbing which was previously drawn back between the rollers when tappet H came in contact with arm N. This allows the yarn to be wound closer to the point of spindle F, and prevents it roving or running off the spindle, and makes.

the yarn more even. A friction-wheel may be substituted for the pinion -L,which will answer the same purpose; The rollers B B now deliver the regular amount of slubbing, the carriage A runs out to the position in Fig. 2, when it comes in contact with our reversing apparatus, and the same operation is performed over again. By lowering the tappet H the sooner will the arm N escape from it and the less will be the amount ot' slubbing retaken up by our reversing apparatus. The arm P can be elevated, as shown by the red lines o, and retained in that position, as shown in Fig. 2, by the hook R, in which case the rack and pinion will be thrown out of gear into the position shown,4Fig. 2, by the regular delivery motion of the rollers BB.

We claim- 1. Giving to the delivering` rollers B B the reciprocating rotary motion, independent of the ordinary feed or delivery motion, substantially as described. l

2. The combination of the bar G G', arms N and l?, the rack K, and pinion L, arranged and operating substantially as described.

PETER WILLIAM GEEENWUOD. THOMAS ll. GREENWOOD. ALFRED GRE ENWOUD. Witnesses GEORGE MoEEirT, SAMUEL STRONG. 

